1. Technical Field
The present disclosure relates to liquid crystal displaying technologies and, particularly, to a detecting device and a detecting method used for detecting a liquid crystal.
2. Description of Related Art
With the development of electronic technology, flat displays such as liquid crystal displays, plasma displays, and OLED displays (Organic Light-Emitting Diode) have gained rapid development. Among the flat displays, liquid crystal displays are thin, small and energy-efficient, making liquid crystal displays gradually replace code cathode displays.
TFT-LCD is a type of flat displays commonly used. Generally, the lighting detection way of the TFT-LCD includes 2D1G (units formed by two data lines and one gate line) and 3D2G (units formed by three data lines and two gate lines). However, detecting the TFT-LCD in the 2D1G and 3D2G ways may cause two adjacent data lines to have same polarities, which weakens the detecting ability of the liquid crystal panel. Referring to
The present disclosure provides a detecting device for detecting a liquid crystal panel which is capable of sharpening the competitive edge of products with liquid crystal panels and improving the detecting ability of the liquid crystal panel.
The detecting device includes a first detecting unit connected to data lines on the liquid crystal panel, a second detecting unit connected to scanning lines on the liquid crystal panel, and a signal generator connected to the first detecting unit and the second detecting unit; both the first detecting unit and the second detecting unit include a line area and connecting ports arranged on one side of the line area and connected to the signal generator; a plurality of lines are arranged on the line area, the lines having the same properties are connected together with one ends thereof respectively connected to the connecting ports and the other ends thereof connected to the corresponding signal lines arranged on the liquid crystal panel.
Preferably, the lines arranged on the line area form at least two groups of line units, the lines in each group of line unit are arranged according to property and the sequence of the lines in each group of line unit is identical to each other, and the number of the lines in each group of line unit is equal to that of the connecting ports.
Preferably, the number of the connecting ports of the first detecting unit is 4, and the number of the lines arranged on the line area is 4n, wherein n is an integer greater than or equal to 2; the number of the connecting ports of the second detecting unit is 2, the number of the lines arranged on the line area is 2n, wherein n is an integer greater than or equal to 2.
Preferably, the number of the connecting ports of the first detecting unit is 6, and the number of the lines arranged on the line area is 6n, wherein n is an integer greater than or equal to 2; the number of the connecting ports of the second detecting unit is 4, the number of the lines arranged on the line area is 4n, wherein n is an integer greater than or equal to 2.
Preferably, the number of the connecting ports of the first detecting unit is 6, and the number of the lines arranged on the line area is 6n, wherein n is an integer greater than or equal to 2; the number of the connecting ports of the second detecting unit is 2, the number of the lines arranged on the line area is 2n, wherein n is an integer greater than or equal to 2.
Preferably, the numbers of the connecting ports of the first detecting unit and the second detecting unit are respectively 4, the number of the lines arranged on the line area 4n, wherein n is an integer greater than or equal to 2.
Preferably, the detecting device further includes a first transferring plate connected between the signal generator and the first detecting unit and a second transferring plate connected between the signal generator and the second detecting unit.
The present disclosure further provides a detecting method for detecting a liquid crystal panel by using the detecting device in claim 1, including:
providing a to-be-detected liquid crystal panel and cutting off a short circuit ring disposed on a non-displaying area of the liquid crystal panel to reveal ends of data lines and scanning lines on the liquid crystal panel;
connecting the first detecting unit of the detecting device to the ends of the data lines and connecting the second detecting unit of the detecting device to the ends of the scanning lines; and
controlling the signal generator to continuously generate a first detecting signal and a second detecting signal to detect the liquid crystal panel.
Preferably, the lines arranged on the line areas of the first detecting unit and the second detecting unit form at least two groups of line unit, the lines in each group of line unit are arranged according to property and the sequence of the lines in each group of line unit is identical to each other, and the number of the lines in each group of line unit is equal to that of the connecting ports.
Preferably, the number of the connecting ports of the first detecting unit is 6, and the number of the lines arranged on the line area is 6n, wherein n is an integer greater than or equal to 2; the number of the connecting ports of the second detecting unit is 4, the number of the lines arranged on the line area is 4n, wherein n is an integer greater than or equal to 2.
Preferably, the number of the connecting ports of the first detecting unit is 4, and the number of the lines arranged on the line area is 4n, wherein n is an integer greater than or equal to 2; the number of the connecting ports of the second detecting unit is 2, the number of the lines arranged on the line area is 2n, wherein n is an integer greater than or equal to 2.
Preferably, the number of the connecting ports of the first detecting unit is 6, and the number of the lines arranged on the line area is 6n, wherein n is an integer greater than or equal to 2; the number of the connecting ports of the second detecting unit is 2, the number of the lines arranged on the line area is 2n, wherein n is an integer greater than or equal to 2.
Preferably, the numbers of the connecting ports of the first detecting unit and the second detecting unit are respectively 4, the number of the lines arranged on the line area 4n, wherein n is an integer greater than or equal to 2.
Preferably, the detecting device further includes a first transferring plate disposed between the signal generator and the first detecting unit and a second transferring plate disposed between the signal generator and the second detecting unit.
The line areas of the detecting device of the present disclosure are respectively configured with lines, and one end of each line area is configured with connecting ports for receiving detecting signals and the other end of each line area is connected to signal lines on the liquid crystal panel, which can converting the lighting detection way of the liquid crystal panel. Additionally, after the lighting detection of the liquid crystal panel is finished, the detecting device is detached to be recycled, which not only improves the detecting ability of the liquid crystal panel but also reduces the area of the circuit on the liquid crystal panel and further sharpens the competitive edge of the liquid crystal panel.
Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily dawns to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment is this disclosure are not necessarily to the same embodiment, and such references mean at least one.
Referring to
The detecting device is used for carrying out lighting detection of the liquid crystal panel. The lighting detection way of the liquid crystal panel generally includes 2D1G, 3D2G, 4D2G, 6D2G, 4D4G, and 6D4G, etc. However, detecting the liquid crystal panel in the 2D1G and 3D2G ways may cause two adjacent signals to have the same polarities, which may weaken the detecting ability of the liquid crystal panel. Compared to the 2D1G and 3D2G lighting detection ways, the other four lighting detection ways may improve the detecting ability of the liquid crystal panel. With the detecting device of the present disclosure, the 3D2G or 2D1G lighting detection way can be converted to the other four lighting detection ways. Specifically, a short circuit ring disposed on the liquid crystal panel is at first cut off by laser to suspend the signal lines on the liquid crystal panel in air. One end of the first detecting unit 1 of the detecting device is then connected to the suspended data lines on the liquid crystal panel and the other end thereof is connected to the signal generator 3 via the connecting ports 20. One end of the second detecting unit 2 of the detecting device then is connected to the suspended scanning lines on the liquid crystal panel 100 and the other end thereof is connected to the signal generator 3 via the connecting ports 20. In this way, detecting signals generated by the signal generator 3 can be transmitted to the signal lines on the liquid crystal panel 100 via the connecting ports 20.
With the lines disposed on the line area 10 which has one end thereof configured with the connecting ports 20 for receiving the detecting signals and the other end thereof connected to the signal lines on the liquid crystal panel 100, the detecting device of the present disclosure is capable of converting the lighting detection way of the liquid crystal panel. Additionally, after the lighting detection of the liquid crystal panel is finished, the detecting device can be detached to be recycled, therefore, the circuit which is disposed on the liquid crystal for carrying out the present lighting detection of the liquid crystal panel in the 3D2G or 2D1G way still can be used in the present disclosure, which not only improves the detecting ability of the liquid crystal panel but also sharpens the competitive edge of products having liquid crystal panels.
Furthermore, the lines arranged on the line area 10 of the first detecting unit 1 or the second detecting unit 2 form at least two groups of line units. The lines in each group of line unit are arranged according to property and the sequence of lines in each groups of line unit is identical to each other. Additionally, the number of the lines in each group of line unit is equal to the number of the connecting ports 20. The following specific description about the lines arranged on each line area 10 is based on examples in which the numbers of the connecting ports are respectively 2, 4, and 6.
(1) the number of the connecting ports is 2
Referring to
(2) the number of the connecting ports is 4
Referring to
(3) the number of the connecting ports is 6
Referring to
When detecting the liquid crystal panel, detecting devices having different numbers of connecting ports in the first detecting unit and the second detecting unit are respectively connected to the signal lines on the liquid crystal panel to carry out the lighting detection of the liquid crystal panel in the 4D2G, 6D2G, 4D4G, and 6D4G ways. Referring to
Referring to
Referring to
Step S101, providing a to-be-detected liquid crystal panel and cutting off a short circuit ring disposed on a non-displaying area of the liquid crystal panel to reveal ends of scanning lines and data lines on the liquid crystal panel.
Step S102, providing a detecting device, connecting a first detecting unit of the detecting device to the ends of the data lines and connecting a second detecting unit of the detecting device to the ends of the scanning lines.
Step S103, controlling a signal generator of the detecting device to continuously generate a first detecting signal and a second detecting signal to detect the liquid crystal panel.
The liquid crystal panel includes an array substrate, a color filter substrate, and a liquid crystal layer arranged between the array substrate and the color filter substrate. A number of data lines, a number of scanning lines intertwined with the data lines, and a number of thin film transistors connected to the data lines and the scanning lines are disposed on a displaying area of the array substrate. A peripheral circuit for driving the thin film transistors to work is arranged on the non-displaying area and connected to the data lines and the scanning lines. In the manufacturing process of the liquid crystal panel, in order to determine that whether the data lines and the scanning lines are normally connected, a short circuit ring is disposed in the peripheral circuit. The short circuit ring can further be used in the lighting detection of the liquid crystal panel after the liquid crystal panel is finished. The lighting detection way of the liquid crystal panel includes a 2D1G, 3D2G, 4D2G, 6D2G, 4D4G, and 6D4G, etc. However, in the detecting process, detecting the liquid crystal panel in the 2D1G and 3D2G ways may cause two adjacent signals to have the same properties, which may weaken the detecting ability of the liquid crystal panel. Compared to the 2D1G and 3D2G lighting detection ways, the other four lighting detection ways may improve the detecting ability of the liquid crystal panel. With the detecting device of the present disclosure, the 3D2G or 2D1G lighting detection way can be converted to the other four lighting detection ways. When the lighting detection is carried out, the short circuit ring disposed on the liquid crystal panel is at first cut off and the detecting device is then connected to the cut signal lines on the liquid crystal panel, which is capable of converting the present 3D2G or 2D1G lighting detection way to the other four lighting detection ways. The detecting device used in the detecting method is the same as the detecting device mentioned in the above embodiments and is not retailed again.
The detecting device of the present disclosure is capable of converting the lighting detection way of the liquid crystal panel. Additionally, the detecting device can be detached to be recycled after the detection is finished, which not only improves the detecting ability of the liquid crystal panel but also reduces the area of the circuit on the liquid crystal panel and further sharpens the competitive edge of the liquid crystal panel.
Even though information and the advantages of the present embodiments have been set forth in the foregoing description, together with details of the mechanisms and functions of the present embodiments, the disclosure is illustrative only; and that changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the present embodiments to the full extend indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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201210472359.X | Nov 2012 | CN | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/CN12/85635 | 11/30/2012 | WO | 00 | 2/1/2013 |